#864554 by Berdir, shenzhuxi: Added settings to control the displays of input format selection and preview button.

#850022 by Berdir | BenK: Improved autocomplete for different recipient types and name conflicts between them.

#850552 by Berdir | BenK: Fixed URL for non-existent users shows messages for current logged in user.

#832752 by Berdir | BenK: Fixed 'Allow disabling privatemsg' permission doesn't work without write permission.

#432084 by nbz, Berdir | yaz085, Liliplanet: Added option to display new message indication block without new messages

#555016 by Berdir | neriweaver, trupal218, BenK, nbz, archard, nilsja, kriskd, Liliplanet, yaz085, litwol, Feet, jaron: Added recipient types, allowing to send messages to roles and other recipient groups.

#778372 by Berdir | carlescliment: Fixed missing permission check when a user has disabled privatemsg

#734900 by Berdir | robby.smith: Added permission to allow disabling privatemsg and display notice when disabled.

#719132 by Berdir | fugazi: Changed description of popups integration to include the necessary popups setting.

#520390 by Berdir | drupup: Added option to configure the display of the send message to themself link.